This edition includes Grades and Levels of evidence, providing a better idea of what the sum total of existing evidence suggests regarding key topics.

*Grades and levels of evidence consistently highlighted throughout *Greater number of tables and algorithms ("decision trees") for key decision-making areas *"Scope of concept" introduction to chapters are significantly enhanced, allowing the reader to reference the concepts while reviewing the specific details in the clinically oriented chapters *The only available book with an evidence-based approach covering this specific subject matter in one compendium